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How to correct TypeError: Unicode-objects must be encoded before hashing?
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What is the $? (dollar question mark) variable in shell scripting? [duplicate]
...when you hit enter, a fork + exec + wait happens like above, and bash then sets $? to the exit status of the forked process.
Note: for built-in commands like echo, a process need not be spawned, and Bash just sets $? to 0 to simulate an external process.
Standards and documentation
POSIX 7 2.5.2 "Sp...
Argparse: Required arguments listed under “optional arguments”?
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I think the 'required' argument still needs to be set when adding an argument.
– Karl Rosaen
Oct 13 '17 at 15:13
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Convert a PHP object to an associative array
...; 1,
'' . "\0" . '*' . "\0" . 'bar' => 2,
'baz' =>
stdClass::__set_state(array(
)),
)
Typecasting this way will not do deep casting of the object graph and you need to apply the null bytes (as explained in the manual quote) to access any non-public attributes. So this works best when...
Learning about LINQ [closed]
... you want some practice on LINQ with exercises and answers, really easy to set up and, in my opinion, awesome:
https://github.com/walkhard/linq-exercises
Download from git, open in Visual Studio. Your job is to make the tests pass.
[disclosure: i learned some linq from it and I contribute to the ...
Edit line thickness of CSS 'underline' attribute
...with it using a pair of box-shadows:
.custom-underline{
box-shadow: inset 0 0px 0 white, inset 0 -1px 0 black
}
First shadow is put on top of the second one and that's how you can control the second one by varying the 'px' value of both.
Plus: various colors, thickness and underline positio...
Can javax.persistence.Query.getResultList() return null?
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Just wrap it in an Optional.ofNullable() and you're set.
– de.la.ru
Sep 22 '17 at 14:01
I belie...
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Spring Boot Remove Whitelabel Error Page
...andler because some exception was thrown in our app (and Spring implicitly sets response code to 500 which is correct); is there an easy way to get hold of that exception here (to include some details in error message returned)?
– Jonik
Feb 20 '15 at 13:07
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How to resolve : Can not find the tag library descriptor for “http://java.sun.com/jsp/jstl/core” [du
... but having experienced the same problem I managed to solve the problem by setting a target server for my project.
i.e. right-click on your project and select 'Properties' -> 'Targeted Runtimes' and select the server you going to run your web app on (Tomcat 6 or 7).
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